.
Thread 5 (Thread 0x7fc925315700 (LWP 3421)):
#0  0x00007fc92f48fcdd in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1  0x00007fc92c44b1cd in poll (__timeout=60000, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
No locals.
#2  handle_events (ctx=ctx@entry=0x55e6332c1260, tv=tv@entry=0x7fc925314c70) at ../../libusb/io.c:2154
        r = <optimized out>
        ipollfd = <optimized out>
        nfds = <optimized out>
        internal_nfds = <optimized out>
        fds = <optimized out>
        i = <optimized out>
        timeout_ms = 60000
        special_event = <optimized out>
#3  0x00007fc92c44c130 in handle_events (tv=0x7fc925314c70, ctx=0x55e6332c1260) at ../../libusb/io.c:2087
        nfds = 0
        fds = 0x0
        i = -1
#4  libusb_handle_events_timeout_completed (ctx=0x55e6332c1260, tv=tv@entry=0x7fc925314cc0, completed=completed@entry=0x0) at ../../libusb/io.c:2348
        r = <optimized out>
        poll_timeout = {tv_sec = 60, tv_usec = 0}
        __FUNCTION__ = "libusb_handle_events_timeout_completed"
#5  0x00007fc92c44c22f in libusb_handle_events (ctx=<optimized out>) at ../../libusb/io.c:2424
        tv = {tv_sec = 60, tv_usec = 0}
#6  0x00007fc93014ec11 in g_usb_context_event_thread_cb (data=<optimized out>) at gusb-context.c:579
        context = <optimized out>
        priv = 0x55e6332bee00
#7  0x00007fc9309685f5 in g_thread_proxy (data=0x55e6332ace30) at ../../../../glib/gthread.c:784
        thread = 0x55e6332ace30
#8  0x00007fc92f75f74a in start_thread (arg=0x7fc925315700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7fc925315700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140501889144576, 6576207677761404053, 140726770173726, 140726770173727, 140501889145280, 140501889144576, -6570425950181639019, -6570403442073781099}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0x00007fc92f49bcaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
No locals.
.
Thread 4 (Thread 0x7fc91dab3700 (LWP 3447)):
#0  0x00007fc92f48fcdd in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1  0x00007fc930941119 in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fc9140010c0, timeout=<optimized out>, context=0x55e6332ff150) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7fc930950610 <g_poll>
#2  g_main_context_iterate (context=0x55e6332ff150, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7fc9140010c0
#3  0x00007fc9309414b2 in g_main_loop_run (loop=0x55e63330e4b0) at ../../../../glib/gmain.c:4082
        __func__ = "g_main_loop_run"
#4  0x00007fc930628986 in gdbus_shared_thread_func (user_data=0x55e63330e590) at ../../../../gio/gdbusprivate.c:275
        data = 0x55e63330e590
#5  0x00007fc9309685f5 in g_thread_proxy (data=0x55e6332accf0) at ../../../../glib/gthread.c:784
        thread = 0x55e6332accf0
#6  0x00007fc92f75f74a in start_thread (arg=0x7fc91dab3700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7fc91dab3700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140501762914048, 6576207677761404053, 140726770173294, 140726770173295, 140501762914752, 140501762914048, -6570372128872711019, -6570403442073781099}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fc92f49bcaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
No locals.
.
Thread 3 (Thread 0x7fc926317700 (LWP 3416)):
#0  0x00007fc92f48fcdd in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1  0x00007fc930941119 in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fc9200008c0, timeout=<optimized out>, context=0x55e6332bf4e0) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7fc930950610 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x55e6332bf4e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = 4347
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7fc9200008c0
#3  0x00007fc93094122c in g_main_context_iteration (context=0x55e6332bf4e0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
        retval = <optimized out>
#4  0x00007fc930941271 in glib_worker_main (data=<optimized out>) at ../../../../glib/gmain.c:5742
No locals.
#5  0x00007fc9309685f5 in g_thread_proxy (data=0x55e6332ac940) at ../../../../glib/gthread.c:784
        thread = 0x55e6332ac940
#6  0x00007fc92f75f74a in start_thread (arg=0x7fc926317700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7fc926317700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140501905929984, 6576207677761404053, 140726770173246, 140726770173247, 140501905930688, 140501905929984, -6570419354185614187, -6570403442073781099}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fc92f49bcaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
No locals.
.
Thread 2 (Thread 0x7fc925b16700 (LWP 3418)):
#0  0x00007fc92f48fcdd in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1  0x00007fc92c4516ff in poll (__timeout=-1, __nfds=2, __fds=0x7fc925b15ce0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
No locals.
#2  linux_udev_event_thread_main (arg=<optimized out>) at ../../libusb/os/linux_udev.c:175
        dummy = 0 '\000'
        r = <optimized out>
        udev_dev = <optimized out>
        fds = {{fd = 7, events = 1, revents = 0}, {fd = 6, events = 1, revents = 0}}
        __FUNCTION__ = "linux_udev_event_thread_main"
#3  0x00007fc92f75f74a in start_thread (arg=0x7fc925b16700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7fc925b16700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140501897537280, 6576207677761404053, 140726770173582, 140726770173583, 140501897537984, 140501897537280, -6570424851206882155, -6570403442073781099}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#4  0x00007fc92f49bcaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
No locals.
.
Thread 1 (Thread 0x7fc931c86940 (LWP 3385)):
#0  0x000055e632d68c7f in FU_IS_DEVICE (ptr=0x55e63330a790) at ../src/fu-device.h:31
        __inst = 0x55e63330a790
        __t = 94447189121056
        __r = 858282016
#1  fu_plugin_device_add (plugin=0x55e6332e2280, device=0x55e63330a790) at ../src/fu-plugin.c:317
        _g_boolean_var_ = <optimized out>
        __func__ = "fu_plugin_device_add"
#2  0x000055e632d68dbd in fu_plugin_device_add_delay_cb (user_data=0x55e633313260, user_data@entry=<error reading variable: value has been optimized out>) at ../src/fu-plugin.c:374
        helper = 0x55e633313260
#3  0x00007fc930941853 in g_timeout_dispatch (source=source@entry=0x55e633313290, callback=<optimized out>, user_data=<optimized out>) at ../../../../glib/gmain.c:4633
        timeout_source = 0x55e633313290
        again = <optimized out>
#4  0x00007fc930940dd5 in g_main_dispatch (context=0x55e6332a98a0) at ../../../../glib/gmain.c:3148
        dispatch = 0x7fc930941840 <g_timeout_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x55e633313260
        callback = 0x55e632d68da0 <fu_plugin_device_add_delay_cb>
        cb_funcs = 0x7fc930c08280 <g_source_callback_funcs>
        cb_data = 0x55e6333130c0
        need_destroy = <optimized out>
        source = 0x55e633313290
        current = 0x55e63330e000
        i = 0
#5  g_main_context_dispatch (context=context@entry=0x55e6332a98a0) at ../../../../glib/gmain.c:3813
No locals.
#6  0x00007fc9309411a0 in g_main_context_iterate (context=0x55e6332a98a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3886
        max_priority = 2147483647
        timeout = 44
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 4
        fds = 0x55e6333367f0
#7  0x00007fc9309414b2 in g_main_loop_run (loop=0x55e633289e10) at ../../../../glib/gmain.c:4082
        __func__ = "g_main_loop_run"
#8  0x000055e632d5a8b2 in main (argc=<optimized out>, argv=<optimized out>) at ../src/fu-main.c:947
        immediate_exit = 0
        timed_exit = 0
        options = {{long_name = 0x55e632d6cb65 "timed-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7ffd81258a54, description = 0x55e632d6cb70 "Exit after a small delay", arg_description = 0x0}, {long_name = 0x55e632d6cb89 "immediate-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7ffd81258a50, description = 0x55e632d6cd30 "Exit after the engine has loaded", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}
        priv = 0x55e6332a8120
        error = 0x0
        context = 0x55e6332a8320